Generalities on Drives: Mechanics and Dynamics of Electric Drives. Heating of Machines and Converters, Temperature Control and Effects on the Overall Performance. Service Types and Reduction, Analytical Solution of the Hourly Temperature Profile, Performance Indices.
DC Brushless Drives, Model of DCB Machines, Notes on the Operating Point of Permanent Magnets. Steady-State Model, Torque Characteristics, Operating Domain, Efficiency. Magnetic Configurations. Calculation of the Phase Inductance. Dynamic Model. Converters for DCB Drives, Electronic Commutation, Torque Control, Speed and Position. PID Regulators. Sensorless Techniques for BLDC Drives, Implementation on an STM32 System.
Drives for Synchronous Machines (ACSM AC Brushless). Polyphase Machines, Dynamic Model. d-q Model. Park, Clarke and Inverse Transformations. Control Domain of Isotropic and Anisotropic AC Brushless Machines. Generalities on Implementation Platforms. Position Sensorless Control for PMSM Motors. State and Flux Observers for Permanent Magnet Synchronous Machines. Model Reference Adaptive Systems Techniques. Luenberger Observer. Machine Model with Saturation. Cross-Saturation. Differential and Apparent Inductances. Flux Observers without High Frequency Voltage Injection. Luenberger Observer. MRAS Observer of Bolognani. Methods with High Frequency Voltage Injection. Small Signal Model of a PM Synchronous Motor. Rotor Reference High Frequency Voltage Injection.
Drives for Asynchronous Machines in Steady-State Regime, Geometric and Analytical Calculation of Torque. Single-Line Diagrams for Starting with Contactors. Use of PLCs for the Implementation of Starting Logics. Starting with Thyristor Voltage Controller. DC Braking. Calculation of the Torque Characteristic in DC. V/f Control of the Asynchronous Machine, Regenerative Braking. Programming of an Inverter for Scalar Control. PACS Control Systems.
Drives for Asynchronous Machines in Dynamic Regime. abc Dynamic Model of an Asynchronous Machine. d-q Dynamic Model of an Asynchronous Machine. d-q Equivalent Circuits, Complete d-q Numerical Model. Field-Oriented Vector Control of Rotor Indirect Orientation. Current and Voltage Supply. Simplified Control, and Control with Compensation. Tuning of the Regulators. Effect of Estimation Errors on the Performance of Vector Control. Third Harmonic in PWM Modulation. Modulation Techniques specific for Vector Control Drives. SVM, Implementation Techniques. DTC Sensorless Control Techniques for Asynchronous Machine. Flux Observers for Induction Machines. MRAS Observers. Generic Reference Model of the Induction Machine. Full and Reduced-Order Luenberger Observer. Parameter Estimation Methods based on the Least Squares Method.
Drives for Switched Reluctance Motors. Drives for Permanent Magnet Stepper Motors. Mathematical Model. Full-Step Wave Drive, Full-Step High Torque, Half Stepping Supply. Construction Forms. Drives for Variable Reluctance Stepper Motors. Embryonic Motor. Mathematical Model. Supply Tables. 6/4 and 8/6 Motors. Calculation of the Number of Steps and of the Step Angle. Drives for Hybrid Stepper Motors (HY). Power Supplies for Stepper Motors. Bipolar Supply with Two Sources. Bipolar H-Bridge. H-Bridge with Limiting Resistor. Bilevel Supplies. Volt Second Insertion (VSI). Microstepping Technique.
Switched Reluctance Drives (SRM). Electromechanical Torque Moment. Transient Inductance. Main Characteristics and Comparison with the Stepper Motor. Electromotive Force Constant. Linear Mathematical Model. Equivalent Circuit. Static Converters for SRM Machines. Current Reference in Motor and Generator Operation. High-Speed Issues. Advance Firing. Nonlinear Condition Model. Flux Characteristics as a Function of Current and Rotor Position. Mechanical Energy.
Drives for Flux-Switching Motors.
Laboratory: DC Brushless Drive, Control via ST Microcontroller; Use of PLCs for Starting and Braking of Asynchronous Machine; Use of PACS for Scalar Control of Asynchronous Machine; AC Brushless Drive with Field Orientation on FPGA Device; SVM Modulation Techniques on FPGA Device; Field-Oriented Asynchronous Drive implemented on dSpace System; Control of a Switched Reluctance Machine.
ECTS credits
12
Teaching Language
italiano
Exam Language
italiano
Support Materials Language
italiano
Basic Learning Outcomes
Managing Entity (faculty)
Department of Electrical and Information Engineering (UNICAS)
